Abstract
Objective: Radiofrequency ablation (RFA) of hepatic carcinoma is an effective method for patients with hepatic carcinoma in clinical. Ultrasound can guide the RFA treatments and evaluate its results. The purpose of this study was to explore the efficiency of percutaneous ultrasound-guided for RFA and evaluate the tumor changes in size and blood flow characteristics pre and post the treatments of RFA in patients with hepatic carcinoma.Methods: 30 patients with hepatic carcinoma (40 large nodules, diameter from 5.0–5.9 cm) were included in this study. Multiple sections were used to detect the lesions from deep to shallow, outer to inner, by color Doppler imaging system (ATL Ultrasound Bothell, WA). Ultrasound examinations were performed before (save as a baseline) and after the RFA treatments in 1 week, 1 month, 6 months, and 1 year separately. The size, echogenic characteristics, and blood flow signals were compared in dimension, echogenic characteristics, and hemodynamics changes before and after RFA treatments in different time courses.Results: All nodules in the livers demonstrated a reduction in size and decreasing and/or disappearing in blood flow signals of the tumor after RFA treatments. There was no recurrence and metastasis observed in 80% (32/40) of the cases within 6 months of the treatments.Conclusions: Multiple sections percutaneous ultrasound guidance of radio frequency ablation in hepatic carcinoma is a convenient and efficient method for patients with large hepatic carcinoma. Objective: Radiofrequency ablation (RFA) of hepatic carcinoma is an effective method for patients with hepatic carcinoma in clinical. Ultrasound can guide the RFA treatments and evaluate its results. The purpose of this study was to explore the efficiency of percutaneous ultrasound-guided for RFA and evaluate the tumor changes in size and blood flow characteristics pre and post the treatments of RFA in patients with hepatic carcinoma. Methods: 30 patients with hepatic carcinoma (40 large nodules, diameter from 5.0–5.9 cm) were included in this study. Multiple sections were used to detect the lesions from deep to shallow, outer to inner, by color Doppler imaging system (ATL Ultrasound Bothell, WA). Ultrasound examinations were performed before (save as a baseline) and after the RFA treatments in 1 week, 1 month, 6 months, and 1 year separately. The size, echogenic characteristics, and blood flow signals were compared in dimension, echogenic characteristics, and hemodynamics changes before and after RFA treatments in different time courses. Results: All nodules in the livers demonstrated a reduction in size and decreasing and/or disappearing in blood flow signals of the tumor after RFA treatments. There was no recurrence and metastasis observed in 80% (32/40) of the cases within 6 months of the treatments. Conclusions: Multiple sections percutaneous ultrasound guidance of radio frequency ablation in hepatic carcinoma is a convenient and efficient method for patients with large hepatic carcinoma.
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